Hi!

Today's class is about <b>key signatures</b>!

Major and natural minor scales built on C and A respectively do not contain any altered note. In order to build these scales starting from any other note, it is necessary to alter one or more notes. For instance, in the scale of G major, note F is sharp. If you wished to write a melody in G major, you would need to alter all F notes. Key signatures are used to avoid writing so many accidentals.

Key signatures are placed at the beginning of each staff, between the clef and the meter signature:



In the former melodic fragment, all F are sharp. Therefore, if you want to write a natural F, it should be preceded by a natural.

Scales with sharps in their key signatures are the following:



Scales with flats in their key signatures are the following:




*Bianca*

thanks for the class!

looks great!! see ya next time!

*Rach*